From c77d2bfaa0e0390e421b4d337f49451d504f7046 Mon Sep 17 00:00:00 2001 From: cslashm Date: Mon, 26 Mar 2018 12:55:48 +0200 Subject: Add the possibility to export private view key for fast scan. On client startup the device asks for authorization to export the private view key. If user agree, the client hold the private view key allowing a fast blockchain scan. If the user does not agree, the blockchain scan is fully done via the device. --- src/wallet/wallet2.cpp | 55 ++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 44 insertions(+), 11 deletions(-) (limited to 'src/wallet/wallet2.cpp') diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp index 4b7e6dd93..295fcc1be 100644 --- a/src/wallet/wallet2.cpp +++ b/src/wallet/wallet2.cpp @@ -1007,13 +1007,16 @@ void wallet2::set_unspent(size_t idx) //---------------------------------------------------------------------------------------------------- void wallet2::check_acc_out_precomp(const tx_out &o, const crypto::key_derivation &derivation, const std::vector &additional_derivations, size_t i, tx_scan_info_t &tx_scan_info) const { + hw::device &hwdev = m_account.get_device(); + std::unique_lock hwdev_lock (hwdev); + hwdev.set_mode(hw::device::TRANSACTION_PARSE); if (o.target.type() != typeid(txout_to_key)) { tx_scan_info.error = true; LOG_ERROR("wrong type id in transaction out"); return; } - tx_scan_info.received = is_out_to_acc_precomp(m_subaddresses, boost::get(o.target).key, derivation, additional_derivations, i, m_account.get_device()); + tx_scan_info.received = is_out_to_acc_precomp(m_subaddresses, boost::get(o.target).key, derivation, additional_derivations, i, hwdev); if(tx_scan_info.received) { tx_scan_info.money_transfered = o.amount; // may be 0 for ringct outputs @@ -1080,9 +1083,15 @@ void wallet2::scan_output(const cryptonote::transaction &tx, const crypto::publi //---------------------------------------------------------------------------------------------------- void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool, bool double_spend_seen) { - // In this function, tx (probably) only contains the base information - // (that is, the prunable stuff may or may not be included) + //ensure device is let in NONE mode in any case + hw::device &hwdev = m_account.get_device(); + + std::unique_lock hwdev_lock (hwdev); + hw::reset_mode rst(hwdev); + hwdev_lock.unlock(); + // In this function, tx (probably) only contains the base information + // (that is, the prunable stuff may or may not be included) if (!miner_tx && !pool) process_unconfirmed(txid, tx, height); std::vector outs; @@ -1119,8 +1128,10 @@ void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote tools::threadpool& tpool = tools::threadpool::getInstance(); tools::threadpool::waiter waiter; const cryptonote::account_keys& keys = m_account.get_keys(); - hw::device &hwdev = m_account.get_device(); crypto::key_derivation derivation; + + hwdev_lock.lock(); + hwdev.set_mode(hw::device::TRANSACTION_PARSE); if (!hwdev.generate_key_derivation(tx_pub_key, keys.m_view_secret_key, derivation)) { MWARNING("Failed to generate key derivation from tx pubkey, skipping"); @@ -1140,6 +1151,7 @@ void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote additional_derivations.pop_back(); } } + hwdev_lock.unlock(); if (miner_tx && m_refresh_type == RefreshNoCoinbase) { @@ -1161,16 +1173,19 @@ void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote std::ref(tx_scan_info[i]))); } waiter.wait(); - // then scan all outputs from 0 + hwdev_lock.lock(); + hwdev.set_mode(hw::device::NONE); for (size_t i = 0; i < tx.vout.size(); ++i) { THROW_WALLET_EXCEPTION_IF(tx_scan_info[i].error, error::acc_outs_lookup_error, tx, tx_pub_key, m_account.get_keys()); if (tx_scan_info[i].received) { + hwdev.generate_key_derivation(tx_pub_key, keys.m_view_secret_key, tx_scan_info[i].received->derivation); scan_output(tx, tx_pub_key, i, tx_scan_info[i], num_vouts_received, tx_money_got_in_outs, outs); } } + hwdev_lock.unlock(); } } else if (tx.vout.size() > 1 && tools::threadpool::getInstance().get_max_concurrency() > 1) @@ -1181,14 +1196,19 @@ void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote std::ref(tx_scan_info[i]))); } waiter.wait(); + + hwdev_lock.lock(); + hwdev.set_mode(hw::device::NONE); for (size_t i = 0; i < tx.vout.size(); ++i) { THROW_WALLET_EXCEPTION_IF(tx_scan_info[i].error, error::acc_outs_lookup_error, tx, tx_pub_key, m_account.get_keys()); if (tx_scan_info[i].received) { + hwdev.generate_key_derivation(tx_pub_key, keys.m_view_secret_key, tx_scan_info[i].received->derivation); scan_output(tx, tx_pub_key, i, tx_scan_info[i], num_vouts_received, tx_money_got_in_outs, outs); } } + hwdev_lock.unlock(); } else { @@ -1198,7 +1218,11 @@ void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote THROW_WALLET_EXCEPTION_IF(tx_scan_info[i].error, error::acc_outs_lookup_error, tx, tx_pub_key, m_account.get_keys()); if (tx_scan_info[i].received) { + hwdev_lock.lock(); + hwdev.set_mode(hw::device::NONE); + hwdev.generate_key_derivation(tx_pub_key, keys.m_view_secret_key, tx_scan_info[i].received->derivation); scan_output(tx, tx_pub_key, i, tx_scan_info[i], num_vouts_received, tx_money_got_in_outs, outs); + hwdev_lock.unlock(); } } } @@ -7224,6 +7248,11 @@ bool wallet2::light_wallet_key_image_is_ours(const crypto::key_image& key_image, // usable balance. std::vector wallet2::create_transactions_2(std::vector dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector& extra, uint32_t subaddr_account, std::set subaddr_indices, bool trusted_daemon) { + //ensure device is let in NONE mode in any case + hw::device &hwdev = m_account.get_device(); + std::unique_lock hwdev_lock (hwdev); + hw::reset_mode rst(hwdev); + if(m_light_wallet) { // Populate m_transfers light_wallet_get_unspent_outs(); @@ -7441,8 +7470,8 @@ std::vector wallet2::create_transactions_2(std::vector* unused_transfers_indices = &unused_transfers_indices_per_subaddr[0].second; std::vector* unused_dust_indices = &unused_dust_indices_per_subaddr[0].second; - hw::device &hwdev = m_account.get_device(); - hwdev.set_signature_mode(hw::device::SIGNATURE_FAKE); + + hwdev.set_mode(hw::device::TRANSACTION_CREATE_FAKE); while ((!dsts.empty() && dsts[0].amount > 0) || adding_fee || !preferred_inputs.empty() || should_pick_a_second_output(use_rct, txes.back().selected_transfers.size(), *unused_transfers_indices, *unused_dust_indices)) { TX &tx = txes.back(); @@ -7671,7 +7700,7 @@ skip_tx: LOG_PRINT_L1("Done creating " << txes.size() << " transactions, " << print_money(accumulated_fee) << " total fee, " << print_money(accumulated_change) << " total change"); - hwdev.set_signature_mode(hw::device::SIGNATURE_REAL); + hwdev.set_mode(hw::device::TRANSACTION_CREATE_REAL); for (std::vector::iterator i = txes.begin(); i != txes.end(); ++i) { TX &tx = *i; @@ -7802,6 +7831,11 @@ std::vector wallet2::create_transactions_single(const crypt std::vector wallet2::create_transactions_from(const cryptonote::account_public_address &address, bool is_subaddress, std::vector unused_transfers_indices, std::vector unused_dust_indices, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector& extra, bool trusted_daemon) { + //ensure device is let in NONE mode in any case + hw::device &hwdev = m_account.get_device(); + std::unique_lock hwdev_lock (hwdev); + hw::reset_mode rst(hwdev); + uint64_t accumulated_fee, accumulated_outputs, accumulated_change; struct TX { std::vector selected_transfers; @@ -7834,8 +7868,7 @@ std::vector wallet2::create_transactions_from(const crypton needed_fee = 0; // while we have something to send - hw::device &hwdev = m_account.get_device(); - hwdev.set_signature_mode(hw::device::SIGNATURE_FAKE); + hwdev.set_mode(hw::device::TRANSACTION_CREATE_FAKE); while (!unused_dust_indices.empty() || !unused_transfers_indices.empty()) { TX &tx = txes.back(); @@ -7921,7 +7954,7 @@ std::vector wallet2::create_transactions_from(const crypton LOG_PRINT_L1("Done creating " << txes.size() << " transactions, " << print_money(accumulated_fee) << " total fee, " << print_money(accumulated_change) << " total change"); - hwdev.set_signature_mode(hw::device::SIGNATURE_REAL); + hwdev.set_mode(hw::device::TRANSACTION_CREATE_REAL); for (std::vector::iterator i = txes.begin(); i != txes.end(); ++i) { TX &tx = *i; 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